Tabulator



y 1936- J. R. PEIRCE 2,042,324

TABULATOR Filed April 7, 1930 i8 Shets-Sheet 1 I Svwemtoz 3513 ("like 1011 May 26, 1936. J- R PEIRCE 2,042,324

TABULATOR Filed April 7, 1930 18 Sheets-Sheet 5 FIB. 3.

255' gum/"tea May 26, 1936. V -J.R[PE.RE 0 3 4- TA BULATOR Filed April 7, 1950 18 Sheets-Sheet 4 Evwemboz y 1936. J. R. PEIRCE 2,042,324

TABULATOR Filed April 7, 1930 18 Sheets-Sheet 5 Swumtoz fifmg 4 elf/com J. R. PEIRCE May 26, 1936.

TABUL'ATOR Filed April '7, 1930 18 Sheets-Sheet 6 ff) anventd'a gag? 0 a. v mfl/%w May 26, 1936. J. R. PEIRCE TABULATOR Filed April 7, 1930 18 Sheets-Sheet 8 I 7i 1 7 H May 26, 1936. J. R. PEIRCE 2,042,324

TABULATOR v Filed April '7, 1950 I8 Sheets-Sheet 9 FIG".

FIG. 12.

y 1936- J. R. PEIRCE 2,042,324

TABULATOR Filed April 7, 1930 Svwentoz I68 l8 Sheets-Sheet l0 J. R. PEIRCE May 26, 1936.

TABULATOR Filed April 7, 1930 18 Sheets-Sheet ll avweuto'c y 1936- J. R. PEIRCE 2,042,324

TABULA'IOR Filed April '7, 1930 18 Sheets-Sheet l2 )8 of; l 29 36 I um. 3o

III I ll I anveutoz 351;; Smo

y 1936 J. PEIRCE 2, 042I324 TA BULATQR Filed April '7, 1930 18 Sheets-Sheet 13 May 26, 1936.

J. R. PEIRCE 2,042,324

TABULATOR Filed April 7, 1930 1s Shets-Sheet 14 y 1936. J. R. PEIRCE 2,042,324

TABULATOR Filed April 7, 1930 18 Sheets-Sheet 15 FIG. 23.

J. R. PEIRCE 2,042,324 I May 26, 1936.

TA BULATOR Filed'April 7, 1930 18 Sheets-Sheet 16 May 26, 1936. PEIRCE 2,042,324 I TABULATOR Filed April 7, 1930 18 Sheets-Sheet 17 0 9 27 45 63 8! 99 "7 |53 I59 1.07 225 243 278 291 333 351300 FIG. 24

y 1936- J. R. PEIRCE 2,042,324

TABULATOR Filed April '7, 1950 18 Sheets-Sheet l8 Will/E g] T FIG. 29.

awvemtoz Patented May 26, 1936 PATENT OFFICE TABULATOE John myaen Peirce,

New York, N. Y., assignor,

by mesne assignments, to International Business Machines Corporation, New York, N.

corporation of New York Application April 7, 1930, Serial No. 442,348

6Claims.

This invention is directed to improvements in record controlled accounting machines. The record cards are perforated according to the well known Hollerith system and the machine is adapted to sense the cards electrically and print upon a record sheet the interpretation of those perforations.

One of the objects of the invention is to provide a novel accumulator in which radially shiitable gears are used for securing the necessary differential action and wherein such gears are ratchet shaped; formed with a minimum pressure angle to overcome the tendency to disengage which is common in the use of involute gear shapes.

Another object is to provide a novel positioning device for type bars, whereby the restoring shocks of the type bars may be lessened.

A further object is in the provision of a type bar having more than one character 01' a kind thereon, one such character being further than the other from the printing line.

Another object is to provide a type bar structure which permits the ready disconnectionof the bar from its actuator for removal from the machine.

A still further object is to provide simplified means for deriving totals from the accumulator wherein a simple brush and commutator device is provided for taking a total; and the total is taken upon the arrival of the accumulator elements at zero position after being forwardly reset by the differential actuator.

Another object is to provide in an accumulator, means whereby, when taking a total, such accumulator elements as stand at zero will prevent their associated type bars rising through the range of significant figures.

, A still further object resides in the provision of novel and compact circuit shifting devices whereby listing circuits may quickly be 'transferred into totaling circuits when occasion requires.

Another object is to provide a machine wherein 45- the electric controlling devices are reduced to a minimum, consistent with successful operation by the use of low potential current which permits the elimination of, all arcing contacts necessary in high potential circuits.

Another object is to provide a type bar having a zero in advance of the significant figures and a second zero following the same, together with means whereby the printing hammers of such type bars will be constrained against tripping when either zero is raised to printing position.

A still further object resides in the employment of novel devices which permit the use of so-called total cards to control the operation of the machine.

Another object is the provision oi a removable sectional structure of automatic control devices comprising control contacts and their operating magnets, wherein one ormore contacts and magnets are mounted on a plate. The plates are slidably inserted for operation and as many plates may be used as will give the desired number of columns 01' control.

Further and other objects and advantages will be hereinafter set forth in the accompanying. specification and claims, and shown in the drawings, which by way of illustration show what is now considered to be the preferred embodiment of the invention.

In the drawings:

Fig. 1 is a perspective view of the complete machine;

Fig. 2 is a side elevation looking at the right of the machine;

Fig. 3 is a central section taken on a plane parallel to Fig. 2 and looking inthe same direction;

Fig. 4 is a section taken on line 4-4 of Fig. 3 showing the arrangement of the accumulating. units and the driving means therefor;

Fig. 5 is a section taken on line 5-5 of Fig. 3 showing the main drive and clutch devices;

Fig. 5a is 'a section taken on line Sit-54 of Fig.

Fig. 6 is an outside view of the card analyzing section taken on line 6-6 of Fig. 5;

Fig. 7 is a detail view of mechanism for operating circuit switching contacts. This view is taken on line of Fig. 4;

Fig. 8 is an enlarged detail of the type bar hammer controlling devices;

Fig. 9 is a view taken on line 5-! of Fig. 8;

Fig. 10 is a detail of a record strip with certain entries thereon;

I Fig. 11 is a detail of a timing device used in connection with hand totaling operation. The view is a. section on line Hil of Fig. 5;

Fig. 12 is a detail view of the lower part of a. type bar and its operating connections, the parts being shown in moved position;

Fig. 13 is a section taken on line lI-ll of Fig. 12 showing structural details;

Fig. 14 is a detail section taken on line l4-IO of Fig. 4 showing electric circuit breaking devices; i

- an arm (iii integral with a gear 31.

Fig. 15 is a detail section taken on line i5--I 5 of Fig. 2;

Fig. 20 is a front view of a group controlling unit;

Fig. 21 is a view taken on line 2l2| of Fig. 20;

Fig. 22 is a diagrammatic view of the main driving elements of the machine;

Figs. 23 and 2311; taken together form a wirin diagram of the electric circuit of the machine;

Fig. 24 is a timing chart of the various mechanical and electrical devices;

' Fig. 25 is a detail view of card feeding devices, showing the arrangement of card lever con tacts; I a

Fig. 26 is a detail position view of transfer mechanism .in "9" position; Fig. 27 is a detail position view of transfer mechanism in 0 position;

Fig. 28 is a sectional view taken on line 28-28 of Fig. 16.v

Fig. 29 is a fragment of a total-card. The machine comprises principally a card reading device designated generally as A in Fig. 1, printing type mechanism and associated control devices B, and accumulators C (Figs. 3 and I Main drive These devices are mounted upon a base It); supported by legs H (see Figs. 1, 2, 3, 4' and 5). A motor l2 attached to the underside of base I 0 (see also Fig. 22) has belt and pulley connection I3- with a worm shaft M. The worm I5 mounted thereon, drives worm wheel l6 fixed upon shaft ll so that said .shaft continues running as long as the motor receives current.

At either extremity of shaft I! are clutch devices adaptedupon actuation to form a driving connection at one end to the card reading de- -vice and at the other to the printing type mechanism.

A gear I8 mounted upon constantly running shaft il through gears I 9 and 20 drives shaft 2| which in turn through bevel gears 22 cause vertical shaft 23 to rotate. Upon this upright shaft are fixed several bevel gears 24 meshing with bevel gears 25 upon parallel shafts 26;.

Thus, through this train of gearing, shafts 26 are seen to be in constant rotation, so that gears 21 (see Fig. 4) mounted upon these shafts will in turn keep in constant rotation the actuating elements of the accumulating units with which they are related and which will be hereinafter more fully explained.

The shaft ll (FigsJZ, 5, 19 and 22) carries, adjacent to gear iii, a notched disk 22'; adapted to be engaged by a dog 29 pivotally mounted upon Gear 3%? is carried by a stubshafttfl in, axial alinement with shaft ll and,.through idler gear 35;, drives :gear 3% mounted on cam shaft 535. An armature latch 365 pivoted at ilupon an arm 3 3, normally disk 28 in the position shown in A mag net 39, upon energization, draws armature latch gear 41.

dog 29 so that its spring 48 may bring it into engagement with driving disk 28.

Upon deenergization of magnet 39 armature 36 will be moved by its spring into the path of a projecting toe of dog 29 to throw the dog out of engagement with disk 28. Ann 38 will be similarly engaged by armature 36 (see Fig. 19) to prevent further movement of gear 3| in a clockwise direction. Arm 38 is pivoted near its midpoint and provided at one end with a stout spring 4| to absorb the shock of stopping gear 3|. The usual rebound latch 42 is also provided.

In Figs. 5, 6 and 22 shaft I1 is shown as carrying a second clutch driving disk 43 cooperating with a dog 44 mounted upon an arm 45 to which is fixedly connected a gear 46 to drive the card reading device A, through an idler gear 41. The

Card reading device Energization of magnet 48 causes connection to be made between constantly running shaft I1 and a ring gear 58 through pinion 5| and idler Referring now to Figs. 6 and 25 the record cards are fed singly from the supply magazine 52 by the usual card picker mechanism comprising in the present embodiment a slidably mounted reciprocal plate 53 carrying a picker knife 54 for cooperation with the record cards. The plate '53 has a pin and slot connection 55 with an arm 56 secured to a shaft 51 which carries at its end an arm 58 connected by a link 58 to a stud 60 mounted eccentrically on a pinion 6l meshing with ring gear 58. Each reciprocation of plate 53 and picker knife 54 causes a card to be fed from the magazine to the analyzing mechanism, wherein the card is presented to two sets of analyzing brushes 62 and 63 which sense the perforations thereon.

The feeding of the record cards is effected by concentrically arranged pairs of rollers 64 having driving connection to ring gear 50 through pinion gears 65. g The cards pass from the last pair of rollers 64 to any suitable stacker mechanism 66, that shown being of the rotary type to the end of whose shaft is attached a gear 61 meshing with a pinion 68 secured to pinion 6|. The cards are fed to a discharge stack 69 in the same order they were in originally.

The usual card levers may be positioned at the card stations to control various functions of the machine as will be described in connection with the electric circuit. After a record card passes the analyzing brushes 62 it contacts a lever 18 (Fig. 25 and through arm and links 10a rocks a contact operating lever 10b to close pairs of contacts UCLI and UCL2 and to open contacts UCL3. Lever 10 is adapted to return to its normal position after a card has passed and before the succeeding card arrives at the lever. Before the recordcard reaches the lower brushes 63 it con tacts a lever It having link connection lia'to a lever'lib, which is depressedby the card after it has passed the analyzing brushes The posi-- tioning of levers "ill and lib is such that while cards are-feeding throughthe device the links ta will remain inoperative position to maintain con tacts and LCLQ in closed position. This is acc'orriplishedioy spacing levers ii i and iii; a

"greater lnterval than the distance between suo- 365 to the left as viewed in this figurereleasing' cessive'cards. Thus the leading edge of a carol 

